Your case flows well. Each part moves logically into the next, and you tell a compelling story. A bit more polish and energy will help you sell your arguments even better.

You went long on your second speech... I stopped flowing you at 3:30. I didn't vote on the violation because Jesse didn't bring it up.

You did a good job refuting opposition claims, line by line. Extending and cross-applying your opening contention that the act of killing itself is inhumane answers the final opposition contention and would have been good to do explicitly.

While there is no specific rule requiring you to have or cite evidence, some things are more open to "common sense" analysis than others. When you are discussing science, you really need some evidence to support your claims. If a region with a similar dolphin population but no hunt had demonstrably lower catches of pelagic fish, that would bolster your argument. You need to cite credible evidence to make me believe that, though. Since you're asking me to judge the round on net benefits, it's especially important that those benefits are verified and quantified. Citations or it didn't happen.

In matters of morality you might be better justified in not warranting your claims with evidence.

I would have liked a bit more clash here... both of you need to identify specific points where you can refute your opponent's argument and do that. Prop does a bit better job on that aspect, but even he neglects to listen for or point out inconsistencies in his opponent's analytics. (If dolphin hunts haven't affected dolphin populations, how is it logical that stopping dolphin hunts will cause them to spike?)

It seems to me that the core of the argument is never really touched upon. Prop says the act of killing is itself inhumane, while opp says that reforming killing methods will satisfy all parties. Both of these statements can't be true, yet neither of them were answered head-on.

That being said, the prop did a better job of addressing opposing arguments with evidence, so I vote Proposition.